NewPipe/app/src/main/java/org/schabi/newpipe/BackgroundPlayer.java

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package org.schabi.newpipe;
import android.app.Notification;
import android.app.NotificationManager;
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.net.wifi.WifiManager;
import android.os.IBinder;
import android.os.PowerManager;
import android.support.v7.app.NotificationCompat;
import android.util.Log;
import android.widget.Toast;
import java.io.IOException;
/**
* Created by Adam Howard on 08/11/15.
*
* Copyright (c) Adam Howard <achdisposable1@gmail.com> 2015
*
* BackgroundPlayer.java is part of NewPipe.
*
* NewPipe is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* NewPipe is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with NewPipe. If not, see <http://www.gnu.org/licenses/>.
*/
/**Plays the audio stream of videos in the background. */
public class BackgroundPlayer extends Service /*implements MediaPlayer.OnPreparedListener*/ {
private static final String TAG = BackgroundPlayer.class.toString();
//private Looper mServiceLooper;
//private ServiceHandler mServiceHandler;
public BackgroundPlayer() {
super();
}
@Override
public void onCreate() {
super.onCreate();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
Toast.makeText(this, "Playing in background", Toast.LENGTH_SHORT).show();//todo:translation string
String source = intent.getDataString();
String videoTitle = intent.getStringExtra("title");
PlayerThread player = new PlayerThread(source, videoTitle, this);
player.start();
// If we get killed after returning here, don't restart
return START_NOT_STICKY;
}
@Override
public IBinder onBind(Intent intent) {
// We don't provide binding (yet?), so return null
return null;
}
@Override
public void onDestroy() {
//Toast.makeText(this, "service done", Toast.LENGTH_SHORT).show();
}
private class PlayerThread extends Thread {
private MediaPlayer mediaPlayer;
private String source;
private String title;
private BackgroundPlayer owner;
public PlayerThread(String src, String title, BackgroundPlayer owner) {
this.source = src;
this.title = title;
this.owner = owner;
mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
}
@Override
public void run() {
mediaPlayer.setWakeMode(getApplicationContext(), PowerManager.PARTIAL_WAKE_LOCK);//cpu lock
try {
mediaPlayer.setDataSource(source);
mediaPlayer.prepare(); //We are already in a separate worker thread,
//so calling the blocking prepare() method should be ok
//alternatively:
//mediaPlayer.setOnPreparedListener(this);
//mediaPlayer.prepareAsync(); //prepare async to not block main thread
} catch (IOException ioe) {
ioe.printStackTrace();
Log.e(TAG, "video source:" + source);
Log.e(TAG, "video title:" + title);
//can't do anything useful without a file to play; exit early
return;
}
WifiManager wifiMgr = ((WifiManager)getSystemService(Context.WIFI_SERVICE));
WifiManager.WifiLock wifiLock = wifiMgr.createWifiLock(WifiManager.WIFI_MODE_FULL, TAG);
mediaPlayer.setOnCompletionListener(new EndListener(wifiLock));//listen for end of video
//get audio focus
/*
AudioManager audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
int result = audioManager.requestAudioFocus(this, AudioManager.STREAM_MUSIC,
AudioManager.AUDIOFOCUS_GAIN);
if (result != AudioManager.AUDIOFOCUS_REQUEST_GRANTED) {
// could not get audio focus.
}*/
wifiLock.acquire();
mediaPlayer.start();
//mediaPlayer.getCurrentPosition()
int vidLength = mediaPlayer.getDuration();
//todo: make it so that tapping the notification brings you back to the Video's DetailActivity
NotificationCompat.Builder noteBuilder = new NotificationCompat.Builder(owner);
noteBuilder
.setPriority(Notification.PRIORITY_LOW)
.setCategory(Notification.CATEGORY_TRANSPORT)
.setContentTitle(title)
.setContentText("NewPipe is playing in the background")//todo: translation string
.setOngoing(true)
.setProgress(vidLength, 0, false)
.setSmallIcon(R.mipmap.ic_launcher);
int noteID = TAG.hashCode();
startForeground(noteID, noteBuilder.build());
NotificationManager noteMgr = (NotificationManager)getSystemService(NOTIFICATION_SERVICE);
//update every 3s or 4 times in the video, whichever is shorter
int sleepTime = Math.min(3000, (int)((double)vidLength/4));
while(mediaPlayer.isPlaying()) {
try {
Thread.sleep(sleepTime);
} catch (InterruptedException e) {
Log.d(TAG, "sleep failure");
}
noteBuilder.setProgress(vidLength, mediaPlayer.getCurrentPosition(), false);
noteMgr.notify(noteID, noteBuilder.build());
}
noteBuilder.setProgress(0, 0, false);//remove bar
noteMgr.cancel(noteID);
}
}
/*
private class ListenerThread extends Thread implements AudioManager.OnAudioFocusChangeListener {
@Override
public void onAudioFocusChange(int focusChange) {
}
}*/
private class EndListener implements MediaPlayer.OnCompletionListener {
private WifiManager.WifiLock wl;
public EndListener(WifiManager.WifiLock wifiLock) {
this.wl = wifiLock;
}
@Override
public void onCompletion(MediaPlayer mp) {
wl.release();//release wifilock
stopForeground(true);//remove ongoing notification
stopSelf();
mp.release();
//todo:release cpu lock
}
}
}